The invention provides a therapeutic drug for ischemic stroke. The therapeutic drug has the formula (I)
wherein each symbol is as defined herein, or a pharmacologically acceptable salt thereof, or a solvate thereof, as an active ingredient.
represent a new class of scaffold for GSMs, which do not have a strongly basic end group such as arylimidazole. High-throughput screening identified 2-methyl-8-[(2-methylbenzyl)oxy]-3-(pyridin-4-yl)imidazo[1,2-a]pyridine (3a), which inhibited the cellular production of Aβ42 (IC50 = 7.1 µM) without changing total production of Aβ. Structural optimization of this series of compounds identified 5-[8-(benzylox
γ-分泌酶调节剂(GSM)选择性抑制淀粉样β-42(Aβ42)的产生,因此可用于治疗阿尔茨海默氏病。并非衍生自非甾体抗炎药的大多数杂环GSM均含有潜在抑制细胞色素P450(CYP)活性的芳基咪唑部分。在这里,我们发现了咪唑并吡啶衍生物,它们代表了一类新型的GSM支架,它们没有强碱性端基(如芳基咪唑)。高通量筛选鉴定出2-甲基-8-[(2-甲基苄基)氧基] -3-(吡啶-4-基)咪唑并[1,2- a ]吡啶(3a),其抑制细胞产生Aβ42( IC 50 = 7.1 µM),而不会改变Aβ的总产量。该系列化合物的结构优化确定了5- [8-(苄氧基)-2-甲基咪唑并[1,2- a ]吡啶-3-基] -2-乙基异吲哚-1-酮(3m)是Aβ42的有效抑制剂(IC 50 = 0.39 µM),但不是CYP3A4。此外,3m在小鼠中表现出持续的药代动力学特征,并充分渗透到大脑中。
The present invention provides the compounds represented by formula (I):
(I)
or pharmaceutical salts thereof, wherein:
X
1
represents oxygen atoms and the like, X
2
represents nitrogen atoms and the like, X
3
represents nitrogen atoms and the like, X
4
represents nitrogen atoms and the like, R
1
represents formula (II-1):
wherein X
5
represents sulfur atoms and the like, A
1
represents carbon atoms and the like, A
2
represents nitrogen atoms and the like and A ring represents phenyl group and the like, having mGluR1 inhibiting effect, and being usefull for preventing or treating convulsion, acute pain, inflammatory pain, chronic pain, brain disorder such as cerebral infarction or transient ischemick attack, psychotic disorder such as schizophrenia, anxiety, drug dependence, Parkinson's disease, or gastrointestinal disorder.
The present invention provides the compounds represented by formula (I):
or pharmaceutical salts thereof, wherein:
X
1
represents oxygen atoms and the like, X
2
represents nitrogen atoms and the like, X
3
represents nitrogen atoms and the like, X
4
represents nitrogen atoms and the like, R
1
represents formula (II-1):
wherein X
5
represents sulfur atoms and the like, A
1
represents carbon atoms and the like, A
2
represents nitrogen atoms and the like and A ring represents phenyl group and the like,
having mGluR1 inhibiting effect, and being useful for preventing or treating convulsion, acute pain, inflammatory pain, chronic pain, brain disorder such as cerebral infarction or transient ischemick attack, psychotic disorder such as schizophrenia, anxiety, drug dependence, Parkinson's disease, or gastrointestinal disorder.